/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package Servlet;

import conexion.Logueo;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import procediemientos.Login;

/**
 *
 * @author carlos
 */
@WebServlet(name = "Login", urlPatterns = {"/Login"})
public class logueando extends HttpServlet {

    HttpServletRequest request = null;
    HttpServletResponse response = null;

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

      String cerrar = request.getParameter("salir");
 if (cerrar  != null) {
            cerrarSession(request, response);
        }
        
          else{
      int usuario = Integer.parseInt( request.getParameter("usuario"));
        String contrasena = request.getParameter("contrasena");
        
        try {


            Logueo us = Login.find(usuario);

            if (usuario == us.getIdentificacion() && contrasena.equals(us.getContrasena())) {

                HttpSession session_actual = request.getSession(true);
                session_actual.setAttribute("USER", usuario+"");
               
                if(us.getTipoUsuario()==0){
                response.sendRedirect("Module_User.jsp");
                }else if(us.getTipoUsuario()==1){
                response.sendRedirect("hola.jsp");
                }else if(us.getTipoUsuario()==2){
                response.sendRedirect("Module_Administrator.jsp");
                }
                

            } else {
                response.sendRedirect("index.jsp");
            }



        } finally {
            out.close();
        }
          }
    }

    

    public void cerrarSession(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {

            HttpSession session_actual = request.getSession();
            session_actual.invalidate();
            response.sendRedirect("index.jsp");
        } finally {
            out.close();
        }

    }     // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">

    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
